DemoFor public education only. These blocks are built by PisoScan from published PhilGEPS records to show how a budget ledger like CADENA would work. No government agency created or signed them, and this is not an official ledger. How it works

Transaction details

API

Transaction action

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - BATAAN 2ND DEO Award a ₱1.9M contract to JOHN ARNE CONSTRUCTIONNational agencies

Transaction hash:

e21192c8a92c41a63412ffcbb8b4a6d748d4449e03c4cd8eebb278220cb6fb9b

Status:

Included and unchanged

Block:

#1,328 4,685 blocks after it

Position in block:

Transaction 42 of 50

Award day:

Dec 21, 2011 (14 yrs 10 mo ago)

From:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - BATAAN 2ND DEO

To:

JOHN ARNE CONSTRUCTION

Value:

₱1,930,750.00

Project:

Removal of Obstruction (Landslides)/Rehab. along Bagac-Mariveles Road, Mariveles, Bataan Km. 165+000 - Km. 168+000 w/ exception

Full record:

Open the award page

Accountability

Bill Sec. 3 and 19

Responsible agency:

DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - BATAAN 2ND DEO

Accountable officer:

Not stated in the source. PhilGEPS does not publish who certified the award.

Certification:

Not certified No agency signed this record. Under CADENA the accountable officer would sign it with their own key.

Demo signature:

Block #1,328 signature valid Demo key, proves nothing about the governmentPublic key

Linked records: from budget to payment

Bill Sec. 5

1. Appropriation
GAA line item · Sec. 5(b)
The award does not say which budget line pays for it.
Not published
2. Allotment release
SARO / allotment · Sec. 5(c)(iii)
Not published per project. DBM releases SAROs, but not linked to individual contracts.
Not published
3. Cash allocation
Notice of Cash Allocation · Sec. 5(c)(iv)
Not published per project.
Not published
4. Contract award
Notice of Award (PhilGEPS) · Sec. 5(d)
DEPARTMENT OF PUBLIC WORKS AND HIGHWAYS - BATAAN 2ND DEO awarded it to JOHN ARNE CONSTRUCTION on 2011-12-21.
Found
Open
5. Contract & progress
Contract / progress report (DPWH) · Sec. 5(d)
No matching DPWH contract record (only DPWH contracts are listed with progress).
Not published
6. Payment
Disbursement voucher · Sec. 5(c)(viii)
Not published. No public source shows how much of this contract has been paid.
Not published
7. Completion
Certificate of completion · Sec. 5(d)
No completion certificate published.
Not published
8. Audit
COA annual audit report · Sec. 5(e)(iii)
No COA finding linked to this contract.
Not published

1 of 8 documents found, 0 partly. Under CADENA every step would be published within 7 working days and linked to this record.

Tamper test: try changing this record

Demo

Edit the amount as if someone quietly changed the record. Your browser re-hashes it and walks up the chain. Nothing is saved.

Contract amount (₱)

1. Record fingerprint changed
stored e21192c8a9…b6fb9bnow …
2. Block Merkle root changed
stored e76ecf23f8…aec395now …
3. Block #1328 hash changed
stored 088ab83b0b…874bf4now …

Chain intact. The record matches its fingerprint, so the block and every block after it still line up.

Merkle proof (6 steps)

How this one record is tied to the block's Merkle root, without needing the other 49 records. Each step hashes the current value together with the sibling shown.

leaf e21192c8a92c41a63412ffcbb8b4a6d748d4449e03c4cd8eebb278220cb6fb9b
01 R ecade93672043d36f2060e1f431809a7546ee20def3c73bf07a6042be92d752a
02 L 542b20c8dcb0ac2bfee4d75c4d7c1799ae2c54b1690a396f5f1222e0f6f36c90
03 R d53ad494f41355efd4c7e46bc2f9198ba2cf15215508a4923f9dab3715a4fdbb
04 L 42b822b01714cf00da5ac95077b6d18f266b51228e75c31cde92ba83ba91db77
05 R 1caee6d132f0f0f57f9ac0880e5c1009ed1ed9550a45fcce0b6e7d29944f5025
06 L a9a28e453bc11e4f0d6cd43308c442d72792049c3c7293a3872a7351642c5809
root e76ecf23f8885f389306a836a3dcc9f0999eafe96718a69bcf971dee19aec395